According to CBS News, Grande’s Dangerous Woman concert had just concluded when attendees heard a boom. Others report two loud bangs heard between 10:40 pm and 10:45 pm BST. What caused the explosion is unknown at the moment, although phone callers to BBC Radio 5 place the explosion in the foyer near the merchandise booths, not in the seated area of the arena.

CBS News reports there were an estimated 20,000 people inside the arena.

Ariana is O.K.,” her publicist Joseph Carozza told the New York Times. Grande posted the following message at 4:00 am BST.

broken.
from the bottom of my heart, i am so so sorry. i don't have words.